fix whitespace in ippidb.models

ippisite/ippidb/models.py

@@ -988,7 +988,7 @@ class Compound(AutoFillableModel):
     def autofill(self):
         """
         Finalize the computation of the Compound
-        by computing InChi, InChiKey and Drugbank similarity  
+        by computing InChi, InChiKey and Drugbank similarity
         """
         # compute InChi and InChiKey
         self.inchi = smi2inchi(self.canonical_smile)